This is a medium sized, dextrally shelled, pelagic snail, 0.3 cm in diameter with large eyes and a single swimming fin. The shell is strongly flattened and keeled. The faint yellow spire is small, oblique. The spire has spiral lines. On the whole shellspiral and faint transversesculpture is present. The operculum is relatively thick. It is a carnivorepredating on relatively large zooplankton. This species occurs in the Indian and Atlantic Oceans (Atlanta tokiokai 2).

Tokioka, T., 1961. The structure of the operculum of the species of Atlantidae (Gastropoda: Heteropoda) as a taxonomic criterion, with records of some pelagic mollusks in the North Pacific. Publ. Seto mar. biol. Lab. 9(2): 267-332 (art. 15, pp. 1-86).